Office 365 Calendars can be imported or exported with the Outlook desktop client.

To export a calendar file from Outlook 2013 (Windows)

Open Outlook and click on File in the upper left corner

Select Open & Export

Select Import/Export

Select Export to a File

Select Outlook Data File (.pst)

Select the calendar that you wish to export, click the drop down arrow next to "Calendar" if you do not see a calendar that should be listed

Select Browse to save over an existing file or type in a file path. C:\Users\ePantherID\Documents\Outlook Files\backup.pst is the default file path.

Click Finish.

To export a calendar file from Outlook 2016 (Mac)...

Open Outlook and got to the Calendar Function

Click File and Export

Select which items you wish to export "Outlook for Max Data File (.olm)." You can also click on the Bubble for Items in the category: then use the dropdown bar to select the colored category you wish to export.

Save the file with a name and choose where to put the (.olm) file on the Mac computer.

Click on Finish at the Finish Window

To import a calendar file to Outlook 2013 (Windows)

-Internet Calendar files (.ics) can be imported to Outlookby double clicking the file while Outlook is open. For other file types:

Open Outlook, select File and click Open & Export

Select Import/Export

Select the action that suits your file type, or select Import from another program or file. Click Next

Choose comma separated values or Outlook Data File (.pst). Click Next

If a backup.pst file exists on your machine, the "File to import" field will be auto filled, otherwise click on "Browse..." and select your file.

Select options for handling duplicate events. Click Next

Select the Calendar as the destination folder.

Optional: Click Map Custom fields to choose which fields are imported or to change the destination folder.

Click Finish.

To import a calendar file to Outlook 2016 (Mac)

Open Outlook and open the Calendar

Click on File and Import

Select which type of calendar file you would want to import

Browse for the exported calendar file on your Mac

Click on Finish once you are at the Finish window

You can also import the calendar to the Outlook client byselecting the Outlook for Mac (.olm) and Internet Calendar files (.ics) fileswhile Outlook is open.